<md-content layout="column" layout-fill>
    <p style="font-size:x-large;padding-top: 30px;" align="center">— 知识币充值 —</p>
    <md-content class="content-card">
        <md-card layout="column"  class="md-whiteframe-4dp" layout-padding>
            <span >知识币余额：{{assetBalance}}</span>
            <md-divider></md-divider>
            <br>
            <md-input-container class="md-block">
                <label>充值数量</label>
                <input required ng-model="assetRecharge['asset']" type="number" min="1">
            </md-input-container>
        </md-card>
        <div layout="row" layout-align="end" layout-padding>
            <md-button ng-click="rechargeByUsername(assetRecharge)" flex="15" class="md-raised md-primary">充值</md-button>
        </div>

    </md-content>

</md-content>